2-(Biotin-amido)-1,3-bis(carboxylethoxy)propane，2-(Biotin-amido)-1,3-bis-(C1-PEG1-acid)

Biotin-PEG7-amine

PC-Biotin-PEG4-PEG4-alkyne

Biotin-PEG4-amine

N-(Azido-PEG3)-N-Biotin-PEG4-methyl ester

APN-​NH2，4-amino-N-(4-(2-cyanoethynyl)phenyl)butanamide

TAMRA-PEG3-biotin

Biotin-PEG3-Mal

Biotin-PEG2-C4-alkyne

Biotin-PEG4-amido-methyltetrazine

Biotin-PEG8-alcohol，Biotin-PEG8-OH

Diazo Biotin-PEG3-DBCO

Biotin-EDA-PEG4-PFP

Biotin-PEG11-Mal

Biotin-PEG4-TFP ester

Biotin hydrazide， 生物素酰肼

Biotin-PEG4-methyltetrazine，生物素-PEG4-甲基四嗪

Biotin-PEG4-Hydrazide，生物素-PEG4-酰肼

Biotin-PFP ester，五氟苯酚生物素酯

Desthiobiotin-PEG3-NHS ester